baber/WOPTO huggingface dataset:
Patent GB-1266104-A (GB)
IPC: F16K31/126
Filed: 1970-08-14
Abstract: 1,266,104. Valves. AUTOMATIC SWITCH CO. 14 Aug., 1970 [24 Sept., 1969], No. 39203/70. Heading F2V. A valve for controlling flow to an air filter bag shaking apparatus comprises a main valve member 26 controlling flow between an inlet 21 and an outlet 22 and mounted on a diaphragm 25 having a hole 30 therethrough so that inlet pressure builds up on the top of diaphragm 25 to assist spring 31 to hold the valve member 26 on its seat 24. Chamber 29 above diaphragm 25 is vented to atmosphere at port 41 to open the main valve by a pilot valve having a closure member 42 urged on its seat 38 by a spring 43 and actuated by a diaphragm 48 through a push rod 44. A piston 55 above the diaphragm 48 normally fits in a seat 60 and may be moved by fluid pressure at port 65 when a conditioning valve member 69 is open to move the diaphragm 48 down against spring 52 to actuate the pilot valve. Conditioning valve member 69 is actuated by fluid pressure communicated to set and trip ports 81, 82 and is held in open/closed position by the co-operation of detents 83, 84 on the valve member and valve housing one of which detents is resilient. A series of such valves may be operated in sequence by connecting each outlet to the trip port of the same valve and to the set port of the next successive valve. A pulsed pressure supply from a solenoidoperated timer valve is connected to ports 65. In individual operation of such valves a constant pressure source may be connected to port 65 and pulses from electrically or mechanically operated valves applied to set and trip ports 81, 82.
Patent GB-1289544-A (GB)
IPC: G09G3/296
Filed: 1969-08-13
Abstract: 1289544 Matrix displays OWENS-ILLINOIS Inc 13 Aug 1969 [14 Aug 1968] 20512/72 Divided out of 1289543 Heading G5C The subject matter of this Specification is identical with that described in Specification 1,289,543 but the claims are concerned with a system comprising a gas discharge panel having a pair of crossed conductor arrays, a pulse generator associated with each conductor and a circuit which reduces the impedance of a generator when a spurious voltage is generated in the associated conductor by capacitive coupling in response to a signal fed to an adjacent conductor.
Patent GB-1297641-A (GB)
IPC: G07F11/58
Filed: 1969-07-15
Abstract: 1297641 Coin-freed vending machines TOMS FOODS Ltd 10 March 1970 [15 July 1969] 35533/69 Heading G4V Packets 6 are suspended from hooks 5 that are regularly spaced on a chain conveyer 1 driven by a motor in response to the insertion of a coin to move the conveyer and bring the hook 5A to position 5B at which point the packet 6B falls from the hook into a delivery shoot. The conveyer may as shown, be enclosed in a casing 4, through a slot in which the hooks project downwardly, and the packet is removed from the hook 5A partly by engagement with the casing. A microswitch 15 may be operated to stop the driving motor as the hook reaches position 5C. A handle (13) and dog clutch (12) are provided to enable the chain to be wound back for reloading (Fig. 2, not shown). A vending machine with a plurality of delivery modules is illustrated in Figs. 3 and 4 (not reproduced). Each module (30) is supported by a ledge (34) and projection 36 and removed from the machine by releasing the covers (35), pivoting to position (30A) and unplugging the electrical connections. The delivery tray (23) is provided with an anti-thief flap (26).
Patent GB-1301537-A (GB)
IPC: G01B11/24
Filed: 1970-06-26
Abstract: 1301537 Light-scattering by jewels Y TAKUBO and F SUZUKI 26 June 1970 31020/70 Headings G2A and G2J A device for observing the optical properties of materials such as jewels comprises an enclosure having means for supporting the specimen, which means has a source of electromagnetic radiation which is directed on to the specimen, and means for translating a rotary movement into a linear movement of either the support means or a lens forming part of an optical system within the enclosure. As shown, the specimen, which in this case is a jewel 1 mounted in a ring 2, is carried by a positioning head 31, and a miniature electric lamp 35 is mounted in a covering piece 34 at one end of the head, immediately behind the jewel. Piece 34 has a central hole 34a, through which the light passes to fall on the cullet side of the jewel. Above the jewel, in the wall of the enclosure 10, is a glass viewing panel for viewing the pattern of light scattered by the jewel. If a photographic film is placed in this position, a permanent record may be obtained. The head 31 is positioned at the end of an arm 30, and a screwed thread 32 passes through arm 30, one end being received in a recess 33. At the other end, external of the housing 10, is a knob 13, so that when this is turned, the whole of the arm 30, and hence the jewel, is raised or lowered, so that the image on the screen may be brought into focus. In the modification of Fig. 4 (not shown), the action of the knob 13 is transmitted to a lens system (40), which is moved axially to effect focusing.
Patent GB-1302861-A (GB)
IPC: G21C11/08
Filed: 1969-02-20
Abstract: 1302861 Reactors UNITED KINGDOM ATOMIC ENERGY AUTHORITY 9 Feb 1970 [20 Feb 1969] 9361/69 Heading G6C In a sodium-cooled fast breeder reactor, the reactor core is submerged in a liquid sodium pool which is contained within a frozen layer of sodium supported by a metal-lined concrete vault. The latter is thermally insulated by an assembly of gas-filled shells C, P, T associated with a coolant pipe system through which a sodium-potassium alloy is circulated. The cylindrical shells C, which are slightly tapered from the base, and contain argon, are secured by a framework 19 to the metal-lined concrete surface 20 to be protected. Prismatic shells P are mounted on framework 19 in the spaces between shells C. Steeply tapered shells T are also used. The frozen sodium layer is formed between the framework 19 and surface 20 by coolant loops 22, 23. The taper of shells C is such that the walls of adjacent shells become parallel, due to thermal expansion, to leave a 1 mm. clearance. Specifications 1,299,192 and 1,256,874 are referred to.
Patent GB-1307519-A (GB)
Title: Remote control systems
IPC: H04Q9/08
Filed: 1969-03-11
Abstract: 1307519 Train control systems MODULAR ENG PRODUCTS Ltd 27 Feb 1970 [11 March 1969] 12790/69 Heading B7N [Also in Divisions G4 H3 and H4] A remote control system for a toy train comprises a low frequency alternating current source of power and a transmitter TMR for generating bursts of high frequency alternating current, the high frequency bursts controlling the duration or duration and direction of unidirectional current flow derived from the low frequency alternating current to control a motor M in the remote train or car. The low frequency alternating current source is connected to the primary P of a transformer and several transmitters having different frequencies may have their outputs connected in series using a link LK to provide several channels. The output O, which consists of the low frequency alternating current signal and bursts of high frequency alternating current whose phase (i.e. leading edge) relative to the former signal may be adjusted by a switch SW1 and a variable resistor RV1, is connected to rails R of a model railway track. The high frequency signal is detected by an LC circuit to switch on SCR1 or SCR2 depending on the position of the switch SW1, thus causing the rectified low frequency alternating current signal to energize motor M and drive the train forwards or backwards at a speed dependent on the width of the high frequency bursts i.e. dependent on the setting of the variable resistor RV1. In a modification the high frequency signal is fed to a conductor surrounding the track, the signal being inductively coupled to the train driving circuit and the low frequency signal being applied directly to the circuit.
Patent GB-1315115-A (GB)
Title: Wall-coverings
IPC: H04B10/69
Filed: 1969-05-28
Abstract: 1315115 Automatic gain control for photodiodes or photo-transistor PLESSEY CO Ltd 27 May 1970 [28 May 1969] 26876/69 Heading G1A [Also in Division H4] An automatic gain control system for a photodiode 1 or photo-transistor in a circuit, Fig. 2, for detecting amplitude modulated light comprises a load resistance in the form of a F. E. T. 4, the resistance of which is varied with the intensity of light incident upon the diode to achieve automatic gain control. The output voltage developed across the F.E.T. 4 is compared with a fixed reference voltage by means of an operational amplifier 9 and the difference is applied through a feedback line to the gate of the F. E. T. 4 so as to bring about a change in its resistance, thereby ensuring a constant voltage output of the diode. The modulated signals are detected by virtue of a capacitor 12 the feedback line to afford a predetermined time constant which limits the speed of response of the circuit.
Patent GB-1315740-A (GB)
Title: Device for controlling fuel supply to gas turbine plant
IPC: F02C9/26
Filed: 1971-12-07
Abstract: 1315740 Gas turbine engines - fuel control LENINGRADSKY METALLICHESKY ZAVOD IMENI XXII SIEZDA KPSS 7 Dec 1971 56706/71 Heading FIG The invention relates to a device for controlling fuel supply to a gas turbine engine, the device comprising a valve 1 controlled by the turbine speed governor (not shown), a fuel pressure drop regulator 2 and a valve 3 controlled by the regulator 2. The valve 1 comprises two valves 4 and 5 connected in series flow, the two valve members being mounted on a common rod 6, the pressure drop across the valve 4 being communicated through lines 8 to the pressure drop transmitter 9 of the regulator 2. The transmitter 9 controls the position of a control valve 10 which in turn controls flow of pressure fluid to actuator 11 which in turn controls the position of valve 3 in the fuel line leading to the burner 12. The valve 3 is by-passed at starting by means of a member 13.
Patent GB-1317437-A (GB)
Title: Method of protecting a component of an electrolytic cell for the  production of aluminium
IPC: C25C3/06
Filed: 1969-07-10
Abstract: 1317437 Protecting components of electrolytic reduction cells FOSECO INTERNATIONAL Ltd 12 June 1970 [10 July 1969] 34792/69 Heading B2E [Also in Division C7] A method of protecting a component other than the anode carbon of an electrolytic reduction cell (of the type defined) for the production of aluminium, against oxidation, corrosion or attack by the electrolyte, electrode material or formed aluminium comprises applying to the component a liquid coating comprising a particulate refractory material in a liquid medium. The cells of the type defined are constructed with a base which acts as the cathode and is formed of and/or lined with carbonaceous electrically conducting material reinforced with iron or steel conductors, and a carbon anode. The component may particularly be a metal component which may carry an electric current or a carbon component of the cathode. The refractory material may be zirconium silicate, zirconium oxide, chromite, magnesite or an alumino-silicate or may be an electrically conductive material such as graphite, coke, Al metal powder, Si, silicon carbide, blue titania or titanium boride. The liquid vehicle may be water or isopropanol. A binder for the refractory material such as a clay, starch, dextrin, natural or synthetic resin, alkali metal silicate, ethyl silicate, colloidal silica sol, or an Al or other metal phosphate may be used. In the Examples the components coated are a tube used for siphoning molten Al from the electrolytic cell, steel stubs which support the anode blocks and the pins of Soderberg anodes.
Patent GB-1317442-A (GB)
Title: Chemical development of light-sensitive lead compositions
IPC: G03C5/56
Filed: 1969-10-27
Abstract: 1317442 Benzthiazole AGFA-GEVAERT 18 Aug 1970 [27 Oct 1969] 52570/69 Heading C2C [Also in Division G2] 2 - (N - Methyl - 4 - pyridyl) - 3 - methyl - benzothiazolium dimethosulphate is prepared by heating 2-(4-pyridyl)-benzothiazole and dimethyl sulphate on an oil bath.
Patent GB-1322168-A (GB)
Title: Fluid circuit comprising at least one double-acting jack or ram
IPC: F15B11/16
Filed: 1969-07-11
Abstract: 1322168 Hydraulic motor control circuits SHEPPARD EQUIPMENT Ltd 9 July 1970 [11 July 1969] 35006/69 Heading F1P Lowering under no load and at normal speed of a double acting fluid operated lifting jack 1 is effected by moving a valve 8 into its upper position in which it connects the delivery of a hydraulic pump 5 to the head end of the jack and connects the rod end to a return 4, and lowering at a fast speed is effected by moving a valve 9 into its upper position in which it connects the exhaust from valve 8 to a signal line 12 the pressure in which opens a valve 13 in line 11 to connect the exhaust from the rod end of the jack to the head end thereof thereby increasing its speed. To retract jack 1 and hence raise the load valve 8 is moved to its lower position. Further jacks 2, 3 are controlled by a valve 10 which, together with valves 8, 9 is actuated by a slidable and rotatable shaft (40) Fig.3 (not shown) having pins (45, 46) parallel to but spaced from itself for engaging levers (42, 43, 44) whereby valve 10 is actuated above, valve 8 above or valves 8 and 9 together.
Patent GB-1327574-A (GB)
Title: Support means for uni-directional loads
IPC: F16B7/14
Filed: 1971-04-14
Abstract: 1327574 Brackets; setting devices SINTACEL Ltd 1 March 1972 [14 April 1971] 9444/71 Headings A4B, A4H In a display stand, rack or the like a sleeve 11 is slidably mounted on a uniform cross section post 10 and supported thereon at an adjustable height by a rubber band 12, at least the lower end of the sleeve 11 including a flared portion 11B terminating depending skirt 11A, the support of the sleeve 11 being affected by wedging engagement of the band 12 within the flared portion 11B. The sleeve 11 may carry a bracket. Alternatively, spaced apart posts 10 carry respective sleeves 11 inter-connected by a cross member for supporting a shelf. The sleeve 11 may be of longitudinally split construction and comprise two or more detachably inter-connected parts.
Patent GB-1330637-A (GB)
Title: Surface coating
IPC: B05D5/08
Filed: 1969-10-08
Abstract: 1330637 Non-stick coatings BRITISH GAS CORP 6 Oct 1970 [8 Oct 1969] 49417/69 Heading B2E An article is provided with a surface coating by providing a substrate on the surface of the aricle and applying a coating of a material having a low coefficient of friction, a low surface energy and a high contact angle to said substrate, the substrate being formed by applying particles of hard abrasive material to adhesive on a surface of the article and bonding the particles to the surface with the adhesive material. The abrasive particles may be carborundum or corundum. Suitable adhesives are polyimides, polybenzimidazoles and phenolic resins or mixtures of these. The article may be a sheet and the sheet after having a substrate formed thereon may be applied to a further article of irregular shape. The base sheet may be a metallic foil or a plastics film. The article may be a cooking utensil, a flue pipe or an internal liner for cookers or ovens. The non-stick coatings may be of polytetrafluoroethylene, fluorinated ethylene propylene or silicones.
Patent GB-1332912-A (GB)
Title: Process for the recovery of the contents of microbial cells
IPC: C12P21/00
Filed: 1970-12-22
Abstract: 1332912 Yeast &c BRITISH PETROLEUM CO Ltd 1 Dec 1971 [22 Dec 1970] 60774/70 Heading C6F A process for recording substantially hydrocarbon free nitrogenous material containing active enzymes from whole cells of a hydrocarbon contaminated micro-organism particularly Candida tropicalis, comprises contacting the whole cells with a cell wall lysing enzyme (snail gut juice or strepzyme) in the presence of an aqueous buffer having a pH in the range 3 to 8, the buffer being isotonic or hypertonic to the cell protoplast, incubating to lyse the cell wall and centrifuging to separate the protoplast from the hydrocarbon. The active enzymes may then be recovered from the protoplasts e.g. by osmotic or mechanical rupture followed by centrifugation. The buffer may contain magnesium sulphate, acetate or chloride in a molar concentration in the range 0À3 to 1À5. The cells may be pre-treated to break down the sulphur-sulphur bonds in the cell wall using ascorbic acid, sodium thioglycollate at pH 9, cysteine or mercapto-ethanol.
Patent GB-1336253-A (GB)
Title: Pressure regulating and reducing gas-flow meter for industrial installations
IPC: G05D16/18
Filed: 1971-03-11
Abstract: 1336253 Fluid regulation GAZ DE FRANCE 11 March 1971 6598/71 Heading G3H [Also in Division F4] Supplying gas from a source 10 to a utilization line 11 wherein the pressure Pa is to be maintained constant and at a lower value then the pressure Po of the source 10, is effected by interposing between the source 10 and the utilization line 11 a pressure regulator 12, a sonic nozzle 16 and a probe 14 which controls a pilot circuit 13 of the pressure regulator 12. Pressure and temperature sensors 40, 41 are connected to the line 15 between the regulator 12 and the nozzle 16 and serve to feed information to an integrator 42 which gives an accurate measurement of either the volumetric or mass flow-rate through the line 15. The maximum flow rate through the line 15 is determined by the characteristics of the regulator 12 and the nozzle 16, Fig.2 (not shown). In modifications, Figs.3, 5, 6, (not shown) the single nozzle 16 may be replaced by two nozzles arranged in parallel and connected to the line 15, Fig.3 (not shown). Furthermore, the arrangement of Fig. 1 may be modified by connecting between points upstream of the regulator 12 and down stream of the nozzle 16 either one additional nozzle Fig. 5 (not shown) or a plurality of additional nozzles arranged in parallel Fig.6 (not shown), each of the additional nozzles having a valve downstream thereof, the valve or valves being automatically operable to cut-in or cut-out the additional nozzle or nozzles.
Patent GB-1336407-A (GB)
Title: Method of shielding high voltage solid dielectric power cables
IPC: H01B13/26
Filed: 1972-06-29
Abstract: 1336407 Cables GENERAL CABLE CORP 29 June 1972 30546/72 Heading H1A An electric power cable comprises at least one conductor 12 having an extruded dielectric 16 of rubber or plastics material and a composite dielectric screen 20, 22 comprising a continuous coating 22 of semi-conducting material applied to the outer surface of the core dielectric and, overlying and bonded to the coating, a continuous layer of helically lapped semi-conducting tape 20, the bond strength between the tape and the coating being substantially greater than that between the coating and the core dielectric. The coating 22 may be made of electrically conductive carbon black dispersed in a vehicle of, e.g. a solution of polyethylene dissolved in toluene, and may be between 1 and 3 mils thick, the tape 20 being between 9 and 11 mils thick. An outer sheath 24 may be extruded over the dielectric screen. The coating 22, when mixed with its solvent should be a composition which is compatible with the material of the dielectric. For the above coating composition, compatible dielectric materials are, e.g. butyl rubber, ethylene propylene rubber or other polyolefins. The dielectric 16 should be cured before the coating, which is purposely made with uncured plastics material, is applied. The tape 20 may be made of semi-conducting uncured butyl rubber, or it may be made of other material that is semi-conducting and having a skin 26 of uncured plastics material bonded to its inside surface. The coating 22 should be dry before the tape 20 is applied. Application of beat to the cable, e.g. that involved in applying an extruded thermoplastics or lead sheath such as the sheath 24, strongly bonds the coating to the inner surface of the tape.
Patent GB-1337558-A (GB)
Title: Tandem axle suspension
IPC: B60G5/047
Filed: 1972-10-24
Abstract: 1337558 Tandem axle suspensions CRANE FRUEHAUF TRAILERS Ltd 24 Oct 1972 48918/72 Heading B7D In a tandem axle suspension comprising an equalizer beam 4 engaging the adjacent ends of leaf-springs 2, 6 and pivotally mounted by rubber bushes on a shaft 8 carried by a centre spring hanger 9, rubbing surfaces 14 are provided on the hanger 9 on each side of the ends of the beam 4 so that the beam rubs against one or more of the rubbing surfaces when subjected to sideways forces to reduce the effect of such forces on the rubber bushes.
Patent GB-1338767-A (GB)
Title: Fuel vapourizing device for an internal combustion engine or gas turbine engine
IPC: F02M31/18
Filed: 1970-12-23
Abstract: 1338767 Vaporizing I C engine fuel charge; gas turbine fuel systems SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 8 Dec 1971 [23 Dec 1970] 61041/70 Headings F1B F1G and F1L[Also in Division F4] In a device for vaporizing the liquid fuel charge for an I. C. engine or gas turbine engine one or more sealed vessels 10 containing a heat transfer fluid, e.g. 2-octanol, decane or tetralin, are arranged so that in use the liquid phase 12 of the fluid receives heat in a zone adapted to contact hot engine exhaust gas or hot gas from the gas turbine engine. The vapour phase 16 of the fluid condenses in a heat-discharging zone adapted to contact the liquid fuel charge upstream of the point at which it is to be mixed with the combustion air or a major part thereof. The vessel 10 may be a two-phase thermosyphon in which the condensate returns to the heat receiving zone by gravity or a heat pipe having a wick-like lining (17), Fig. 1a (not shown), or grooves on its inner surface through which the condensate returns by capillary action. The vessel 10 may contain a non-condensable gas 32, e.g. nitrogen, helium, argon, neon or krypton, which collects at the end of the vessel remote from the liquid 12 and regulates the heat output. For starting the engine or turbine, the vessel 10 or one or more auxiliary vessels may be electrically heated. The heat output of the vessel 10 may be regulated by a cooler 30 or by electrical or mechanical control of the heat supplied. Mechanical spreaders may distribute liquid fuel on the heat-discharging zone of the vessel. In the embodiment shown, a constant suction carburetter 44 controls the admission of fuel and air to the device, partitions 46 directing the fuel from the nozzle 60 and a  minor part of the air flow over the tubes 70 defined by the vessel 10. Upstream of the throttle valve 52 the vapourized fuel is mixed with the major part of the air flow. The fuel in a fuel line (24), Fig. 4 (not shown), may be vaporized and supplied to an engine intake manifold (26). The fuel may be supplied to the device by a fuel injector (78), Fig. 7 (not shown), and the vessel 10 may include separate passages (72) for condensate return. A plurality of separate vessels, Figs. 9a and 9b (not shown), may extend between partitions 46 downstream of the fuel injector (78). The device may supply the primary combustion zone, inter-stage reheat system or exhaust reheat system of the gas turbine engine. The vessel 10 may operate at a temperature between 200 and 300‹C with an internal pressure of one to four atmospheres. The device may provide a mixture with an air-fuel ratio in excess of 20:1 and the ratio may be maintained substantially constant by mechanical or electrical control of the fuel flow.